Class: Shellfie::AnsiParser

Inherits:
Object
  • Object
show all
Defined in:
lib/shellfie/ansi_parser.rb

Constant Summary collapse

ANSI_REGEX = 
/\e\[([0-9;:]*)m/
OSC_REGEX = 
/\e\](.*?)?(?:\a|\e\\)/m
2_048
MAX_OSC_BYTES = 
MAX_LINK_BYTES + 64
%w[http https mailto].freeze

Instance Method Summary collapse

Constructor Details

#initialize(state_mode: :persistent, tab_width: 8, osc_policy: "ignore", graphics_policy: "ignore") ⇒ AnsiParser

Returns a new instance of AnsiParser.



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# File 'lib/shellfie/ansi_parser.rb', line 37

def initialize(state_mode: :persistent, tab_width: 8, osc_policy: "ignore", graphics_policy: "ignore")
  @state_mode = state_mode.to_sym
  @tab_width = tab_width
  @osc_policy = osc_policy.to_s
  @graphics_policy = graphics_policy.to_s
  @link = nil
  @pending_osc = +""
  reset_state
end

Instance Method Details

#parse(text) ⇒ Object 



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# File 'lib/shellfie/ansi_parser.rb', line 47

def parse(text)
  if @state_mode == :line
    reset_state
    @link = nil
  end

  input = @pending_osc + text.to_s
  reject_terminal_graphics!(input)
  input, @pending_osc = split_incomplete_osc(input)
  segments = []
  scanner = StringScanner.new(AnsiNormalizer.normalize(input, tab_width: @tab_width, osc_policy: @osc_policy))
  current_text = +""

  until scanner.eos?
    if scanner.scan(OSC_REGEX)
      unless current_text.empty?
        segments << create_segment(current_text)
        current_text = +""
      end
      process_osc(scanner[1])
    elsif scanner.scan(ANSI_REGEX)
      unless current_text.empty?
        segments << create_segment(current_text)
        current_text = +""
      end
      process_codes(scanner[1])
    else
      current_text << scanner.getch
    end
  end

  segments << create_segment(current_text) unless current_text.empty?
  segments
end